One of Canada’s popular long-distance running events, the annual Edmonton Marathon in Alberta, is facing widespread criticism after organizers confirmed the 2026 edition of the race featured a course that was incorrectly measured, coming in more than half a kilometer over the standard marathon distance.
Known widely among competitive distance runners as a key qualifying event for the world-famous Boston Marathon, the 2026 race left dozens of participants frustrated and confused immediately after they crossed the finish line. Multiple runners took to social media and running community platforms to share data from their GPS running watches, which all recorded a total distance exceeding 26.22 miles — the official standard marathon distance is 26.2 miles (42.195 kilometers).
Organizers initially pushed back on these complaints, dismissing the concerns as minor inaccuracies common to consumer GPS devices. However, in an official public statement released this Wednesday, event leadership reversed that position and confirmed the error: a total of 674.7 meters, equal to 0.41 miles, was accidentally added to the full marathon course.
“We do not take this mistake lightly,” said Tom Keogh, the event’s race director, in the statement. “We welcomed the country’s top athletes to compete here, and the finishing times they earned this weekend do not truly reflect how incredible their performances actually were.” Keogh acknowledged that event organizers failed to meet the quality standard that all participating runners had every right to expect from the official race.
Organizers explained that construction work on the city’s Wellington Bridge forced them to adjust the traditional course route with a last-minute detour, and that adjustment resulted in the accidental extra distance.
The error carries significant consequences for many runners. For those aiming to hit the strict qualifying time standards for the Boston Marathon, the extra half kilometer adds extra time to their official chip time, which is the official time used for Boston Marathon qualifying. Many runners now face the possibility of missing out on a qualifying spot they would have otherwise earned on a correctly measured course. Even runners not chasing Boston qualifying times missed out on the chance to hit long-sought personal best times due to the extra distance.
Unlike the informal distance readings from personal GPS watches, Boston Marathon qualifying rules rely exclusively on official chip times recorded at certified qualifying events like the Edmonton Marathon. Currently, event organizers are working closely with Athletics Canada and other relevant governing bodies to figure out a path forward for recognizing 2026 participants’ results fairly. BBC Sport has reached out to the Edmonton Marathon organizing committee for additional comment on the ongoing review process.